grinding-in of valve的意思|示意

The pneumatically driven LCD is designed for in-situ grinding of valve seats on large bore 2-stroke diesel engines.

这款气动驱动的LCD阀座研磨机，主要用于大孔的2冲程的柴油机上的阀座研磨使用。

The drain valve is opened or closed by taking advantage of the change of liquid level of condensate water with the high-precision grinding stainless steel hollow float ball in the valve cavity.

利用高精度研磨不锈钢空心浮球在阀腔内随着凝结水的液位变化开启或关闭阀门。